It's funny, for example the past 50 years the medical community has been convinced that fat is bad especially saturated fat and that it was the cause of cholesterol and medical problems. The thing is the doctor who started such claims didn't really have any proof but merely theories and from there people have followed his ideas. Problem is that more people despite the low fat diets are getting more heart disease, doctors have now after more objective data found that based on evidence and observation not just theory that it's the lack of fat and good cholesterol that causes heart problems and also they intake of carbs and America's biggest problem sugar.
This is a factually and demonstrably false statement.
